Cutter-bar for mowers, &amp;c.



PATENTED JUNE 2, 1908.

11. 1:. GLEZBN. CUTTER BAR FOR MOWERS, aw.

APPLICATION FILED nno.11,1ao1.

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PATENTED JUNE 2, 1908.

' D. R. GLEZBN. CUTTER. BAR FOR MOWERS, 6w.

APPLIOATION FILED DEO.17. 1907.

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DANIEL R. GLEZEN, OF CENTER LISLE, NEW YORK.

CUTTER-BAR FOR MOWERS, 85c.

Specification of Letters Patent.

Patented June 2, 1908.

Application filed December 17, 1907. Serial No. 406,917.

To all whom it may concern:

Be it known that I, DANIEL R. GLEZEN, a citizen of the United States,residing at Center Lisle, in the county of Broome and State of New York,have invented new and useful Improvements in Cutter-Bars for Mowers,

&c., of which the following is a specification.

. This invention relates to cutter bars for mowing machines, reapers andharvesting machines, the object ofthe invention being to provide animproved cutter bar havin means whereby the guards are securely held inplace and prevented from being sprung out of position; also means forsecurely holding the scythe buttons in proper position rela tively tothe cutter bar; also means for preventing side check of the guard.

A further object of the invention is to construct and combine the partsreferred to in such manner that they may be readily assembled anddisassociated with ease.

With the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combination and arrangements of parts, hereinafterfully described, illustrated and claimed.

In the accompanying drawings :Figure 1 is a plan view of a section of acutter bar embodying the present invention. vertical cross sectionthrough the same on the line 2-2 of Fig. 1. Fig. 3 is a detail section011 the line 3-3 of Fig. 2 showing the means for manipulating thefastener buttons. Fig. 4 is a vertical cross section taken on the line4-4 of Fig. 1. Fig. 5 is a perspective view of one of the guards. Fig. 6is a detail view of one of the scythe buttons.

Each of the guards 1, in the main, is of the usual form now in commonuse, being pointed at its forward end as shown at 2 and slotted in itsupper portion as indicated at 3 to admit of the reciprocatory movementof the knife sections 4, the latter being secured in abutting relationto each other to a common knife bar 5 which moves in a correspondingrecess 6 in the upper side of the guard as shown in Fig. 2. The rearportion of each guard is provided with an upstanding boss 7 which. isformed by providing a cross groove 8 just in rear of the knife bar 5,and a cross rabbet 9 at the heel end of the guard, the groove 8 andrabbet 9 being of the same depth vertically. The upstanding boss 7 is ofthe same length as the width of the body portion of the guard, thewidthof the boss being somewhat less so Fig. 2 is a.

that the boss is substantially rectangular in plan as shown inFig. 1. Bypreference the corners of the boss are rounded off as shown at 10.

11 designates a guard bar which connects all of the guards together andis provided with openings of the same size, as the bosses 7, saidopenings being arranged at proper intervals apart to receive saidbosses. The guard bar 11 is approximately of the same thickness as theheight of the bosses 7 and is held down thereon by means of fastenerbuttons 12 each of which is approximately the same size and shape as thetop of the boss 7 as shown in Fig. 1. Each button 12 is secured in placeby means of a bolt or rivet 1,3 which passes through the button andbodyof the guard as shown in Fig. 2 being referably countersunk and headedas s own. Each boss is further provided with a recess 14 extending fromthe upper side thereof downward and having fitted therein'a verticallymovable lock pin 15 which is ressed upward by means of an underlyingcoiFspring 16 arranged in the recess 14. The button 12 is provided at acorresponding point in its under side with a recess adapted to receivethe upper end of said lock pin as shown in Fig. 2, the pin being adaptedto snap-into the recess of the button and hold the same in position tofasten the uard bar to the guard, such position being i lustrated inFig. 1.

In order to disen age the lockpin from the button so as to a low suchbutton to be turned into alinement with the boss, a small hole 17 isbored through the button 12 in line with the lock pin 15 and a key orspanner 18 is provided, the same having projections 19 adapted tostraddle or span the button as shown in Fig.3 and also rovided with acentrally located bit 20 0' suitable length to reach through the hole 17and press the lock pin 15 downward just far enough to unlock the button12 without causing the bit 20 to come in locking contact with the boss7. The key or s anner 18 is provided with a suitable hand e 21 wherebyit may be turned after pressing the same downward and in this way eachof the fastener buttons 12 may be unlocked and swung into alinement withits respective boss 7 when it is desired to detach the guards from theuard bar.

Adjacent to each of the buttons 12, the

guard bar 11 is provided with a rise or cam surface 22 against which theunder side of the buttons 12 rides so as to wedge or jam the guard andguard bar together as the button 1s turned to its locking position.

At suitable intervals along the cutter bar there are placed scythebuttons 23. Each of said buttons 23 lies at its forward projecting endsin close proximity to or contact with the cutter bar knife sectionswhile the rear thereof'is provided with oppositely extending wings 24each of which is provided with an opening 25 of the same size as one ofthe bosses 7 whereby the wings 24 are adapted to straddle said bosses.As the wings 24, however, lie on top of the guard bar 11, it isnecessary to make the corresponding bosses 7 of greater height as shownin Fig. 4 so that said bosses will extend through the guard bar and alsothrough the wings 24 of the scythe button, as also clearly shown in Fig.4. The fastener button 12 is secured to the top of the boss in the samemanner as previously described, operates over cam surfaces 22 on thewing 24 and is also fastened by a locking pin in exactly the samemanner.

In order to prevent side shock or relative lateral movement between the'uards each of said guards is provided with laterally projectingabutment lugs 26 which bear against each other end to end as illustratedby dotted lines in Fig. 1 and are located just in advance of the knifebar 5 thus providing a practi cally continuous bar for the front edge ofsaid knife bar and also a practically continuous underlying support forthe knife section 4.

I claim l. The combination with a knife bar, of guards having upstandingflat sided bosses,

a guard bar having correspondingly shaped holes to receive said bosses,fastener buttons on said bosses for securing the guard bar and guardstogether and means for locking said buttons.

2. 'The combination with a knife bar, .of guards having upstanding flatsided bosses, a guard bar having correspondingly shaped holes to receivesaid bosses, fastener buttons on said bosses for securing the guard barand guards together and spring locking pins for locking sa'id buttons.

3. The combination with a knife bar, of guards having upstanding bosses,a guard bar having correspondingly shaped holes to receive said bosses,fastener buttons on said bosses for securing the guards and guard bartogether, scythe buttons having apertured wings to receive said bossesand adapted to be held under the fastener buttons and means for lockingthe fastener buttons.

4. The combination with a knife bar, of guards having upstanding bosses,a guard bar having correspondingly shaped holes to receive said bosses,fastener buttons on said bosses for fastening the guard bar and guards,and oppositely projecting abutment lugs on the guards which meet beneaththe knife sections.

In testimony whereof I afIiX my signature in presence of two witnesses.

DANIEL R. GLEZEN.

Witnesses:

F. J. INDERLIED, E. M. HowLAND.

